In the expression, 5ab² + 7a²b,
a) Terms:
* The terms in the expression are: 5ab², 7a²b.
* Both terms have the variable 'a' as a common factor.
* Both terms have the variable 'b' as a common factor.
b) Factors:
* Factors of the expression 5ab² + 7a²b are:
* 5ab² = 5a(b)².
* 7a²b = 7(a²)b.